/
container_pause.go
72 lines (61 loc) · 2.18 KB
/
container_pause.go
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/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"github.com/containerd/containerd"
"github.com/containerd/nerdctl/pkg/api/types"
"github.com/containerd/nerdctl/pkg/clientutil"
"github.com/containerd/nerdctl/pkg/cmd/container"
"github.com/spf13/cobra"
)
func newPauseCommand() *cobra.Command {
var pauseCommand = &cobra.Command{
Use: "pause [flags] CONTAINER [CONTAINER, ...]",
Args: cobra.MinimumNArgs(1),
Short: "Pause all processes within one or more containers",
RunE: pauseAction,
ValidArgsFunction: pauseShellComplete,
SilenceUsage: true,
SilenceErrors: true,
}
return pauseCommand
}
func processContainerPauseOptions(cmd *cobra.Command) (types.ContainerPauseOptions, error) {
globalOptions, err := processRootCmdFlags(cmd)
if err != nil {
return types.ContainerPauseOptions{}, err
}
return types.ContainerPauseOptions{
GOptions: globalOptions,
Stdout: cmd.OutOrStdout(),
}, nil
}
func pauseAction(cmd *cobra.Command, args []string) error {
options, err := processContainerPauseOptions(cmd)
if err != nil {
return err
}
client, ctx, cancel, err := clientutil.NewClient(cmd.Context(), options.GOptions.Namespace, options.GOptions.Address)
if err != nil {
return err
}
defer cancel()
return container.Pause(ctx, client, args, options)
}
func pauseShellComplete(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
// show running container names
statusFilterFn := func(st containerd.ProcessStatus) bool {
return st == containerd.Running
}
return shellCompleteContainerNames(cmd, statusFilterFn)
}